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EX-21.1 4 ex2112024112-subsidiarieso.htm EX-21.1 CIENA CORP - Subsidiaries of registrant

EXHIBIT 21.1


SubsidiaryJurisdiction of Incorporation or Organization
Ciena Communications, Inc.Delaware
Ciena Canada ULCCanada
Ciena Switzerland GMBHSwitzerland
Ciena Global Holding, LPScotland